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Fig. 2 | Insights into Imaging

Fig. 2

From: Electronic cleansing of tagged residue in CT colonography: what radiologists need to know

Fig. 2

Incomplete EC due to inhomogeneously tagged faecal residue. a Faecal residues are not adequately tagged, resulting in an inhomogeneous appearance on axial 2D images (arrows). b A horizontal fluid layer is seen endoluminally before EC (arrowhead). c After EC, only sufficiently tagged parts of the residue can be subtracted, while the other parts remain in the colon lumen (arrow). d This leads to a bizarre, irregular luminal filling defect on 3D endoluminal views

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